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Finding the Fourth Proportional to 299,807.72, 413,750.68 and 172,502.72

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Solution

The fourth proportional to 299,807.72, 413,750.68 and 172,502.72 is: 238,062.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,807.72 : 413,750.68 = 172,502.72 : x
  2. Step 2: Convert to fraction form
    299,807.72/413,750.68 = 172,502.72/x
  3. Step 3: Cross multiply
    299,807.72x = 413,750.68 × 172,502.72
  4. Step 4: Simplify right side
    299,807.72x = 71,373,117,701.85
  5. Step 5: Solve for x
    x = 71,373,117,701.85/299,807.72
  6. Step 6: Final answer
    x = 238,062.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.